A clever half truth.

You have a brother ,but u’ve never seen him. U know him, but u’ve never spoken to him.U care about him out of an unknown arrangement from the initiate curious to the later admire until because of the final habit.U both made the mistake,u are family,u are one.The god separate u when u were born on the same birthday.Who are u?

I WISH FOR YOU.SINCE THE LAST MET ,HOW LONG IT IS?